If the application provides each of the above requirements, the Mapbox Maps SDK for iOS or Android can request all the required resources from Mapbox’s servers and will store them in a database on the device. Downloaded resources include:

Ambient caching

Stone ASOS Shorts Cord In ASOS The Maps SDKs for iOS and Android also automatically cache tiles and other resources that are requested during normal use of the app. These resources are stored in the same database as offline resources, but unlike offline resources, they are limited to 50 MB of space. When this limit is reached, the least-recently used resources that aren’t shared by an offline region will be evicted to make room for newer resources.

Shorts Cord Stone In ASOS ASOS Working with offline maps

With the Maps SDKs for iOS and Android, you can create offline maps, access a list of offline maps stored on the device, and remove offline maps that are no longer needed. When managing your offline regions, keep in mind:

An offline region cannot be modified after creation, but it is possible to create a new region with a modified definition and remove the existing region.

When you remove an offline region, resources that are shared with other offline regions will not be removed.

Icon images for symbol layers added to a map that will be used offline must be explicitly defined to match an existing style image that is already being used within the style.

If a symbol layer for a given source can't load, all related layers that reference the same source will also fail to load.

By explicitly stating the font stacks and icon image names used within a dynamically added symbol layer, you will ensure that the symbol layer will be visible when the map is offline.

Updating offline resources

If the device has network connectivity, the Maps SDK for Android or iOS will make periodic network requests to revalidate cached tiles and other resources if the Cache-Control or Expires HTTP response headers have expired. If an updated resource is available, it will replace the older version in the offline database.

When the SDK automatically updates offline map tiles, the offline region is not re-download from scratch. The offline tile update process is the same process as with regular map tiles: The map tile’s only downloaded if there’s a new version of that tile.

Tile ceiling & limits

An app can download multiple regions for offline use, but the total offline download is capped at a maximum tile count (or “ceiling”) across all downloaded regions. The tile ceiling is set to 6,000 tiles by default, but can be raised with an enterprise plan. The total tile count in an offline region is the sum of the tiles downloaded from each source in your style. For example, if you would like to download a region covering 10 tiles and your style includes one vector tile source and one raster tile source (see sample JSON below), the resulting tile count would be 20.

Six thousand tiles covers a region roughly the size of Greater London within the M25 at zoom levels 0–15 or the contiguous United States at zoom levels 0–9. The size of these tiles on disk will vary according to the selected style.

To estimate the number of tiles needed to download a region offline, check out our offline tile count estimator. Please note that this only generates an estimate of the number of tiles needed to load a defined region offline. The size of the download will vary according to the location being downloaded and the style being used in your application.

You can create an unlimited number of offline regions. Your Mapbox-powered application will reuse tiles and resources that are required by multiple regions, conserving network traffic and disk space.

The Maps SDKs for Android and iOS do not limit the download speed of offline regions, nor do they limit the amount of disk space that may be used by offline resources. The effective limits will depend on the storage capacity of the mobile device and the speed of the network to which it is connected.

Note that these sizes are rough estimates; they do not account for size savings from automatic resource sharing between multiple regions. We suggest benchmarking typical regions for your application to get the best estimate.

The Maps SDK downloads tiles when any connection is available, including over regular mobile data (2G, 3G, 4G, etc.). Because only individual highly-optimized tiles download, there’s no risk of the user incurring an unexpected 100MB download by opening the map in a region that’s already downloaded. That is, of course, unless the user is browsing 100MB worth of tiles.

ASOS Cord In ASOS Stone Shorts The Mapbox iOS and Android SDKs do not include any built-in controls to prevent your users from downloading large offline resources over a cellular network. If you would like to provide your users with this option, we recommend tracking your app’s network connectivity type using the your platform of choice’s APIs, then activating or deactivating the download as desired.

Managing offline download size

When storage space is at a premium, there are a few tactics you can use to decrease the total size of your offline resources:

Reduce the number of font stacks in your style. A font stack is a combination of primary and fallback fonts that defines the order in which the Maps SDK should try to find the characters rendered on your map. If a particular character can’t be found in the primary font, the Maps SDK will look for it in the fallback font. Mapbox default styles often use the Arial Unicode font as a fallback font. Because the Maps SDK needs to download the entirety of each font stack to function offline, reducing the total number of font stacks in your style can drastically reduce the total size of your downloaded resources. For example, if your style uses three different font stacks that use Arial Unicode (Comic Sans + Arial Unicode, Comic Sans Bold + Arial Unicode, and ASOS Cord Shorts In ASOS Stone Comic Sans italic + Arial Unicode), you have to download the entire Arial Unicode font three times because it’s part of three font stacks. You can manage font stacks used within a custom style using the Mapbox Studio style editor.

Reduce the number of sources in your style. Does the offline experience you’ve incorporated in your app require the same level of detail as the online experience you provide? Would reducing the file size by removing some sources would be more beneficial to your users than a higher level of detail? For example, the road network may be more important to your offline users than terrain details. If this is the case, consider removing the Mapbox Terrain tileset from your style.

Request style-optimized vector tiles in your style. Style-optimized vector tiles exclude any features that do not appear in your style. For example, if the parks in your style only appear above zoom level 14, all park features would be removed from vector tiles below zoom level 14, reducing the file size of those tiles.

Product Details

Shorts by ASOS

Textured corduroy

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Machine wash

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Our model wears a W 32" and is 188cm/6'2" tall

PRODUCT CODE

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